package com.william.jdbcplus.boot.test.dto;

import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;

import javax.servlet.http.HttpServletResponse;
import java.io.Serializable;

/**
 * 统一API响应结果封装
 *
 * @author niliwei
 */
@Getter
@Setter
@ToString
@ApiModel(value = "接口返回对象", description = "接口返回信息")
@NoArgsConstructor
public class R<T> implements Serializable {

    private static final long serialVersionUID = 1L;

    @ApiModelProperty(value = "状态码", required = true)
    private Integer code = ResultCode.SUCCESS.getCode();

    @ApiModelProperty(value = "是否成功", required = true)
    private boolean success = true;

    @ApiModelProperty(value = "承载数据")
    private T result;

    @ApiModelProperty(value = "返回消息", required = true)
    private String message = "操作成功";

    @ApiModelProperty(value = "时间戳")
    private long timestamp = System.currentTimeMillis();

    private R(IResultCode resultCode) {
        this(resultCode, null, resultCode.getMessage());
    }

    private R(IResultCode resultCode, String msg) {
        this(resultCode, null, msg);
    }

    private R(IResultCode resultCode, T data) {
        this(resultCode, data, resultCode.getMessage());
    }

    private R(IResultCode resultCode, T data, String msg) {
        this(resultCode.getCode(), data, msg);
    }

    private R(int code, T data, String message) {
        this.code = code;
        this.result = data;
        this.message = message;
        this.success = ResultCode.SUCCESS.code == code;
    }

    /**
     * 返回R
     *
     * @param data 数据
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> data(T data) {
        return data(data, ResultMessage.DEFAULT_SUCCESS_MESSAGE);
    }

    /**
     * 返回R
     *
     * @param data 数据
     * @param msg  消息
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> data(T data, String msg) {
        return data(HttpServletResponse.SC_OK, data, msg);
    }

    /**
     * 返回R
     *
     * @param code 状态码
     * @param data 数据
     * @param msg  消息
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> data(int code, T data, String msg) {
        return new R<>(code, data, data == null ? ResultMessage.DEFAULT_NULL_MESSAGE : msg);
    }

    /**
     * 返回R
     *
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> success(String msg) {
        return new R<>(ResultCode.SUCCESS, msg);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> success(IResultCode resultCode) {
        return new R<>(resultCode);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param msg        消息
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> success(IResultCode resultCode, String msg) {
        return new R<>(resultCode, msg);
    }

    /**
     * 超时请求 返回 R
     *
     * @param <T>
     * @return
     */
    public static <T> R<T> timeout() {
        return fail("请求超时，请稍候再试");
    }

    /**
     * 返回R
     *
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(String msg) {
        return new R<>(ResultCode.FAILURE, msg);
    }


    /**
     * 返回R
     *
     * @param code 状态码
     * @param msg  消息
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(int code, String msg) {
        return new R<>(code, null, msg);
    }

    /**
     * 返回R
     *
     * @param code 状态码
     * @param msg  消息
     * @param <T>  T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(int code, String msg, T data) {
        return new R<>(code, data, msg);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(IResultCode resultCode) {
        return new R<>(resultCode);
    }

    /**
     * 返回R
     *
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> failure() {
        return new R<>(ResultCode.FAILURE);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param msg        消息
     * @param <T>        T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(IResultCode resultCode, String msg) {
        return new R<>(resultCode, msg);
    }

    /**
     * 返回R
     *
     * @param flag 成功状态
     * @return R
     */
    public static <T> R<T> status(boolean flag) {
        return flag ? success(ResultMessage.DEFAULT_SUCCESS_MESSAGE) : fail(ResultMessage.DEFAULT_FAILURE_MESSAGE);
    }

    /**
     * 业务成功
     *
     * @param <T>
     * @return
     */
    public static <T> R<T> ok() {
        return new R<>(ResultCode.SUCCESS, ResultMessage.DEFAULT_SUCCESS_MESSAGE);
    }


}
